Longmont HVAC

Longmont HVAC Services

Locally owned and operated, DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. takes pride in achieving superior temperature control, energy efficiency, and indoor air quality for Longmont home and business owners. Our expertise covers residential and commercial heating and cooling systems. As a Bryant Factory Authorized Dealer, we continue over 25 years of dedication to providing top-notch HVAC services. Call 303-772-2490 to schedule skilled service, including 24/7 emergency assistance throughout greater Longmont, CO.

Heating Systems and Furnaces in Longmont

Longmont winters get extremely cold, even dangerously cold if your heating system cannot perform its job. You can count on DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. to consider your family’s comfort a top priority and do our part to ensure your home temperature is correctly maintained throughout the coldest days of the season.

Heating System Repair in Longmont

If your heating system can no longer keep indoor temperatures at an acceptable level or does so intermittently, our heating repair technicians can help! Regardless of your age, make, or model, the DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. team can source parts and perform repair work.

Heating Service & Maintenance in Longmont

A heating system is one of the most significant investments you will make in your home. Keep it running efficiently and correctly by scheduling regular heating service appointments for balancing, cleaning, and adjusting the inner workings.

Heating Installation & Replacement in Longmont

If you are ready to upgrade, we will gladly give you a no-obligation quote for a replacement heating system. We carry various options that will work for any size home or budget.

Central Air Conditioning in Longmont

Our summers in Longmont seem to get hotter every year! For the hottest few days, air conditioning isn’t optional – it is a requirement for good nights of sleep and comfortable summer afternoons. Whether you need a tune-up, a simple repair, or a complete A/C system design, DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. is here. Give us a call to schedule your appointment for our HVAC services in Longmont.

Air Conditioning Repair in Longmont

No cold air? Contact our air conditioning repair team for prompt and effective corrective action. Our years of experience and thorough manufacturer-driven training ensure we are prepared for any problem your A/C may have.

A/C Service & Maintenance in Longmont

The best way to keep an air conditioner running up to or beyond the manufacturer’s advertised lifespan is to keep up with recurring air conditioner service appointments. Call now to set up a convenient time for your A/C tune-up.

A/C Installation & Replacement in Longmont

Air conditioning technology has come a long way in the last few years. You’ll be amazed at how much of an improvement a new air conditioning system makes in your home. From innovative app-connected features to consistent cooling and energy-saving technology, you will love your new A/C system!

Air Conditioning Excellence in Longmont, CO

With Denver, Colorado’s summer heat on the rise, a reliable air conditioner has become a staple for every home. Our air conditioning services in Longmont, CO, include everything from air conditioning repair to full AC installation. Our skilled technicians are equipped to handle the latest heat pump technology and traditional air conditioners, ensuring your space remains cool and comfortable.

Heating Services for the Colorado Winter

When the Colorado cold sets in, our heat pumps and furnace repair services ensure your Longmont home stays warm. From routine maintenance to new heating system installations, our HVAC services are designed to meet your heating needs efficiently.

Comprehensive HVAC Services & Maintenance

Regular HVAC maintenance is vital for the longevity and efficiency of your HVAC systems. Our comprehensive home services include checking air quality, servicing heat pumps, and providing top-tier HVAC maintenance to keep your systems running smoothly.

Plumbing Services in Longmont

Beyond heating and cooling, we’re also your go-to for plumbing services in Longmont, CO. From water heater service to plumbing installation, we ensure that all aspects of your home’s systems are in top condition.

Engaged in the Longmont Community

As part of the Longmont, CO community, we’re proud to contribute to the local vibrancy that thrives from outdoor adventures to the craft brewery scene. We’re more than just an HVAC company; we’re your neighbors dedicated to providing the best in home services.

About Longmont – Our Vibrant Local Community

Situated between Boulder and Loveland, Longmont is well-known for gorgeous views of Longs Peak, outdoor adventure, an inspiring local art scene, and great brews. Left Hand Brewing Company and Oskar Blues Brewery, two of Colorado’s largest craft breweries, call Longmont home, adding to a cidery, four distilleries, and nine more craft breweries. Whether you want to hike, bike, kayak, paddleboard, snowshoe, golf, camp, fish, shop, or dine on any cuisine preference, there’s something to appeal to everyone.

From browsing locally grown produce at Longmont Farmers Market to ice skating at Longmont Ice Pavilion or enjoying the thrills of the Mile-Hi Skydiving Center, the changing seasons bring new options for activities and scenery.

Contact Us Today for Longmont HVAC services!

Upgrade Your Comfort with Longmont’s Premier HVAC Services. 

What our clients are saying

R. Larson

Extremely happy with my decision to use DNI. Installed cash price of my new furnace & AC unit was about 23% lower than the competition. Chris was very knowledgeable, conscientious, and top notch! The whole crew was excellent!

R. Barcklow

DNI and Chris specifically were amazing. My furnace went out with the first Colorado storm and they were able to come out the next day and provided me with honest, transparent service so I could make the best decision for my budget. There was never any pressure from Chris between buying a new furnace and fixing my old one. I felt like they were patient and willing to work with me and my needs. I would highly recommend DNI for heating services.

J. Jacobs

The service personnel were top-notch – friendly, professional, and dealt with some unexpected issues without missing a beat! Plus, they were dog lovers and made friends with my best buddy Highly recommended!

K. Kitten

Trustworthy, fair and will advocate for their clients. Whether it is maintenance or replacement DNI is wonderful. As a small business, the options are limited and expensive for replacing a unit that is original to the building. Chris L. worked exceptionally hard to ensure that our needs were met, ultimately finding the most cost effective solution.

M. Southworth

DNI Heating got out to my house, assessed the problem and installed a new furnace for us within hours on a Friday afternoon. We did not have to worry about the 0 degree temperatures coming in that weekend. The service was great from the minute I called to helping us register our furnace.

D. Johnson

This crew has saved me on multiple occasions. From heating to ac service they have done it all for me. Always great customer service and a quick response time! Thanks for the continued great service DNI!

Write a Review

Save today with our special offers

At DNI Heating, Cooling, Refrigeration, & Plumbing, Inc. our goal is to make your residential or commercial property more comfortable, and to help you save money. We are happy to provide you with the following special offers!

Special Offers


Local Residential Service Call


This coupon cannot be combined with any other offers. Coupons must be mentioned when booking service calls.

Expiration: 9/30/24